/*
 *    Copyright 2011-2012 The Hook Team
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package org.hook.core.util;

import java.security.SecureRandom;
import java.util.UUID;

/**
 * 封装各种生成唯一性ID算法的工具类
 * 
 * @author suwuqiang 2011-8-19
 */
public abstract class IDUtil {
	private static SecureRandom random = new SecureRandom();

	/**
	 * 生成UUID字符串
	 * 
	 * @param doFix
	 * @return String
	 */
	public static String uuid(boolean doFix) {
		String uuid = UUID.randomUUID().toString();
		if (doFix)
			uuid = uuid.replaceAll("-", "");
		return uuid;
	}

	/**
	 * 生成随即长整型数据
	 * 
	 * @return long
	 */
	public static long randomLong() {
		return random.nextLong();
	}
}
